Two-alternating Profile
U160BSV · 160 kN
A 160 kN two-alternating disc with 155 mm spacing, 300 mm diameter and 450 mm creepage, weighing 8.4 kg. Alternating shed diameters…
Creepage 450 mm
Ø 300 mm
Coupling 20
Two-alternating Profile
Two-alternating Profile Toughened Glass Insulators
Alternating large and small sheds that break up a continuous solid deposit layer at 160 kN.
Models In This Profile
Two-alternating Profile Insulators We Stock And Build
Every model below is listed with the mechanical and electrical data from our own test records.
The Problem
What This Profile Is Solving
Coal dust, cement dust and ore powder form dry, dense and strongly adherent deposits. A uniform shed profile lets that deposit build into one continuous conductive path along the whole creepage distance.
Who Specifies It
- Grid operators serving mining districts and cement works
- Lines crossing steel mill and coal-fired industrial zones
- Projects where washing access is difficult or unsafe
Why This Geometry
Core Advantages
- 450 mm creepage at 160 kN mechanical failing load
- Alternating shed diameters interrupt continuous deposit bridging
- 300 mm disc diameter keeps string wind load below the three-alternating profile
- 20 ball and socket coupling for heavy transmission strings
Application
Where Two-alternating Profile Discs Are Installed
Lines through mining and mineral processing areas
Cement plant and steel mill corridors
Industrial zones with dry particulate fallout
Industries
Sectors Using This Profile
UHV And EHV Transmission Lines
Lines at 330 kV and above carry the load of an entire region. A single insulator failure on a UHV circuit is not a local outage, it is a…
Substations And Switchyards
Substation yards concentrate equipment, heat and pollution in a small footprint. Strings here are short, heavily loaded and surrounded by…
Other Profiles
Compare Against The Rest Of The Range
Standard Profile Toughened Glass Insulators
The baseline disc for clean and lightly polluted lines where creepage does not have to be bought at the price of weight…
Anti-Fog Profile Toughened Glass Insulators
Deep-ribbed discs that push creepage up without a matching jump in diameter, for coastal, chemical and urban air.
Aerodynamic Profile Toughened Glass Insulators
Wide open sheds with no deep ribs, shaped so wind takes the dust off instead of packing it in.
Answers
Two-alternating Profile Questions
How do alternating sheds help against solid pollution?
Dry coal, cement and ore dust forms a dense adherent layer. Alternating large and small shed diameters interrupt that layer so it cannot form one continuous conductive path down the whole creepage distance.
When should I step up to the three-alternating profile?
When deposit severity is extreme enough that a 450 mm path still bridges. The U160BLT adds 100 mm of creepage for 0.5 kg and 30 mm more diameter.
What coupling size does the U160BSV use?
20 ball and socket coupling, the same as the U160BD and U160BLT, so all three are mechanically interchangeable.
Specify The Right Two-alternating Profile Disc
Send us the voltage level, mechanical load and pollution survey for your route and we will confirm the model and creepage before you commit to a quantity.